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/ Products /Distribution /Primary equipment /Circuit Breaker / CIRCUIT BREAKER

CIRCUIT BREAKER

Mã SPProduct Code: 3AP1 FG / 3AP1 FG/

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Introduction:

Function Specifications Additional Information

1. 245 kV CIRCUIT BREAKER
1	Manufacturer/Country of Origin		Siemens Ltd., India
2	Ordering number		Type: 3AP1 FG (Three Pole) Type: 3AP1 FI (Individual Pole)
I	Substantial requirements
1	Applicable standard		IEC 62271-100
2	Type		Outdoor, three-pole operation
			Outdoor, three single-pole operation
3	Interrupter units per pole		1
4	Insulating medium		SF6
5	Rated voltage	kV	220
6	Highest system voltage	kV	245
7	Rated frequency	Hz	50
8	Rated current (In)	A	Type 1: ≥1250 A Type 2: ≥2000 A
9	Rated three phase symmetrical short-circuit breaking current	kA rms.	40
10	Rated three phase symmetrical short circuit making current	kA peak	100
11	Rated duration of short-circuits	s	3
12	Rated Operating Sequence		O-0.3s-CO-3min-CO
13	Lightning impulse voltage (1.2/50ms) withstand to earth	kV peak	1050
14	One minute power frequency voltage withstand to earth 50 Hz	kV rms.	460
15	First-pole-to-clear factor		1,3
16	Minimum creepage distance	mm/kV	25
17	Operating mechanism		3AP1 FG-Three-pole and 3AP1 FI- single pole
18	Operating mechanism drive type		Spring
19	Minimum clearance between phase	mm	2385 (type tested)
20	Minimum clearance to earth	mm	2100 (type tested)
21	Operating times: (*)
	- Opening time	ms	37+4
	- Closing time	ms	< 80
	- Break time	ms	< 60
	- Arcing time	ms	25
22	Maximum time on auto-reclose of : (from trip energisation to instant of reclose main contacts)	ms	3-30s three phases
23	Resistance of main contact (new contact)	mW	< 50
24	Rated out-of phase breaking current	kA	10
25	Rated line charging breaking current	A rms.	125
26	Rated cable charging breaking current	A rms.	250
27	Rated small inductive breaking current	A rms.	(0-20)A at no load
28	Rated transient recovery voltage for terminal faults (T100)	kV peak	364 kVp
29	Auxiliary power supply
	- Voltage for heating and spring charged motor	Vac	220
	- Control, closing & tripping voltage	Vdc	220
30	Number of tripping coil	pcs	2
31	Mechanical operation duration (In - class M2)	time	10000 (at no load) (closing-opening)
32	Times tripping of 20kA (40kA) short circuit current without repair		18 at 40kA 30 at 10kA
33	Power of closing, tripping coil of CB for all three phases	VA	< 1200
34	Type test for Mechanical operation duration (The contractor must provide type tests to demonstrate the parameters offered.)	yes	Yes (enclosed)
35	Gas leakage rate		≤0.5 %/year
36	Wired Control cubicle including: +Anti-pumping device + Pole discrepancy device + Local/remote control switch + SF6 density meter with alarm/trip contact + Auxiliary contact: at least 12NO & 12NC + Auxiliary contacts for charged spring signal and motor control + Heating and lighting device		Yes Pole discrepency device not applicable for 3 pole operated breaker of type :3AP1 FG
37	Common local control cabinet : - For type of single-pole circuit breaker, the common local control cabinet (combined from local control cubicles of three single - pole circuit breaker) must be equipped. The common local control shall allow operating independently closing/opening on each phase and operating simultaneously closing/opening on three phases of circuit breaker. Common control cabinet with connecting cables for electrical coupling of control cabinet with operating mechanism cubicle on each phase		Yes
38	Cabinets of the CB		sheet steel; surface treated for anti-oxidation and paint coated with Zinc spray & polyurethene with ingress protection class of IP 55.
39	Steel structure
	Height steel structure	mm	Yes
	Operating floor	Yes/No	Yes
	Height operating floor	mm	Yes
40	Insulator		Porcelain, brown
II	Non-substantial requirements
1	First-pole-to-clear factor		1,3
2	Rated capacitive breaking current	A rms.	400 (single phase)
3	Number of spare auxiliary contact
	Normally opened	pcs	12
	Normally closed	pcs	12
4	Materials of terminals
	HV		Aluminium Alloy
5	Steel structure
	Type		yes
	Materials		yes
	Height of structure	mm	yes
III	Requirements for information
1	Rated times quanlities of circuit breaker
	Opening time (no-load)	ms	41ms (max)
	Closing time (no-load)	ms	80ms (max)
	Open-close time (no-load)	ms	380ms (including 300ms dead time)
	Reclosing time (no-load)	ms	400ms (including 300ms dead time)
	Close-open time (no-load)	ms	90ms
2	SF6 gas
	SF6 mass for one three-pole circuit breaker	kg	21kg (3 pole)
	Rated SF6 density	kg/m3	Pressure - 6.0 Bar @ 20 deg C (Rated)
	First threshold of SF6 density	kg/m3	Pressure - 5.2 Bar @ 20 deg C (Alarm)
	Second threshold of SF6 density	kg/m3	Pressure – 5.0 Bar @ 20 deg C (Trip/Lockout)
	SF6 gas pressure density gauss		SF6 gas density monitoring device
3	Max. noise level at 3 meters distance due to operation of circuit breaker	dB	≤ 140dB
4	Max. impact load due to circuit breaker operation	kg	23kN (Closing) 28kN (Opening)
5	Rated mechanical terminal load kN	kN	2kN
6	Total weight of complete circuit breaker	kg	3500kg (approx.)
7	Terminals (Dimensions : Holes - No. , size and spacing)		Please refer outline drawing
	HV
8	Drawings of steel structure	Yes/No	Yes
STT	ĐẶC TÍNH KỸ THUẬT	ĐƠN VỊ
No	Specifications	Unit
2. 123 kV CIRCUIT BREAKER
1	Manufacturer/Country of Origin		Siemens Ltd., India
2	Ordering number		CB Type: 3AP1 FG
I	Substantial requirements
1	Applicable standard		IEC 62271-100
2	Type		Outdoor, 3 phase
3	Insulating medium		SF6
4	Rated voltage	kV	145
5	Highest system voltage	kV	123
6	Rated frequency	Hz	50
7	Rated current (In)
	Type 1	A	2000
	Type 2	A	1250
8	Rated three phase symmetrical short-circuit breaking current	kA rms.	40
9	Rated three phase symmetrical short circuit making current	kA peak	100
10	Rated duration of short-circuits	s	3
11	Rated Operating Sequence		O-0.3s-CO-3min-CO
12	Lightning impulse voltage (1.2/50ms) withstand to earth	kV peak	650 kV peak (up to 1000m masl)
13	One minute power frequency voltage withstand to earth 50 Hz	kV rms.	275 kV rms. (up to 1000m masl)
14	Minimum creepage distance	mm/kV	25 (3625mm)
15	Operating mechanism		Three-pole
16	Operating mechanism drive type		Spring
17	Minimum clearance between phase	mm	1360
18	Minimum clearance to earth	mm	1250
19	Operating times: (*)
	- Break time	ms	< 80
	- Arcing time	ms	< 25
	- Opening time	ms	< 60
	- Closing time	ms	< 70
	Maximum time on auto-reclose of : (from trip energisation to instant of reclose main contacts)	ms	3-30s three phases
20	Resistance of main contact (new contact)	mW	< 35
21	Rated out-of phase breaking current	kA	10kA
22	Rated line charging breaking current	A rms.	50A
23	Rated cable charging breaking current	A rms.	160A
24	Rated small inductive breaking current	A rms.	(0-20)A (no load small magnetizing breaking current)
25	Rated transient recovery voltage for terminal faults (T100)	kV peak	249kVp
26	Auxiliary power supply
	- Voltage for heating and spring charged motor	Vac	220
	- Control, closing & tripping voltage	Vdc	220
27	Number of tripping coil	pcs	2
28	Mechanical operation duration (In - class M2)	time	10,000 cycles (closing-opening)
29	Type test for Mechanical operation duration (The contractor must provide type tests to demonstrate the parameters offered.)	yes	Yes
30	Gas leakage rate		≤0.5 %/year
31	Wired Control cubicle including: +Anti-pumping device + Pole discrepancy device + Local/remote control switch + SF6 density meter with alarm/trip contact + Auxiliary contact: at least 12NO & 12NC + Auxiliary contacts for charged spring signal and motor control + Heating and lighting device		Yes Pole discrepency device not is applicable for 3 pole operated breaker of type :3AP1 FG
32	Cabinets of the CB		sheet steel; surface treated for anti-oxidation and paint coated with Zinc spray & polyurethene with ingress protection class of IP 55.

33	Height operating floor	mm	yes
34	Isolator		Porcelain, brown (Insulator)
II	Non-substantial requirements
1	First-pole-to-clear factor		1,3
2	Rated capacitive breaking current	A rms.	400
3	Number of spare auxiliary contact
	Normally opened	pcs	12
	Normally closed	pcs	12
4	Materials of terminals
	HV	material	Aluminium Alloy
5	Steel structure
	Type		Yes
	Materials		Yes
	Height steel structure	mm	Yes
III	Requirements for information
1	Rated times quanlities of circuit breaker
	Opening time (no-load)	ms	32+4
	Closing time (no-load)	ms	< 80
	Open-close time (no-load)	ms	360ms (including 300ms dead time)
	Reclosing time (no-load)	ms	400ms (including 300ms dead time)
	Close-open time (no-load)	ms	80ms
2	SF6 gas
	SF6 mass for one three-pole circuit breaker	kg	8.1 kg (3 pole)
	Rated SF6 density	kg/m3	Pressure - 6.0 Bar @ 20 deg C (Rated)
	First threshold of SF6 density	kg/m3	Pressure - 5.2 Bar @ 20 deg C (Alarm)
	Second threshold of SF6 density	kg/m3	Pressure – 5.0 Bar @ 20 deg C (Trip/Lockout)
	SF6 gas pressure density gauss		SF6 gas density monitoring device
3	Max. noise level at 3 meters distance due to operation of circuit breaker	dB	≤ 140dB
4	Max. impact load due to circuit breaker operation	kg	Opening = 20 kN Closing = 15 kN
5	Rated mechanical terminal load kN	kN	2 kN.
6	Minimum clearance between poles	mm	1360 mm (Air clearance); 1700 mm (Pole center to center)
7	Minimum clearance to earth	mm	1250mm (Phase to earth clearance)
8	Total weight of complete circuit breaker	kg	1500kg (approx.)
9	Terminals (Dimensions : Holes - No. , size and spacing)		Please refer GA drawing
	HV		Please refer GA drawing
10	Drawings of steel structure	Yes/No	Yes

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